My 4.7 does the same thing. I just let it idle for a few minutes before
driving. I try not to smoke in it so I usually just finish my cig and then
go.I dont remember this happening last summer, since then, I put in NGK
plugs that are a heat range colder. I wonder if that has something to do
with it. Still, it runs great. I get an avg of 15 mpg around town. And the
last oil analysis I had (last month) showed no signs of a rich fuel mixture.
HTH
Boog
----- Original Message -----
From: "Will Coughlin" <willcoughlin@hotmail.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, May 03, 2001 9:11 AM
Subject: DML: Hesitation??
> Ok, I used to let my truck warm up every time before I moved it, but as
per
> some people's reccomendations on the list, I don't anymore. Now, my
question
> is this- when I first crank it up, I let the oil press. come up, then if I
> give it throttle, it will climb to 1000 rpm's, then it has a dead spot,
and
> stumbles hard. It happens wether you just rev it with no load, or wether I
> put it in gear, take off and hit the same spot in the RPM's. It will
happen
> the first 4-5 times it crosses that spot after it it is first started with
> the engine completely cool(been shutdown for more than 10 hrs.), but after
> that it crosses that spot with absolutely no problems. Conditons are
> this-ambient temp 60*-88*, Throttle body thoroughly cleaned less then 400
> miles ago, Autolite copper core 3923 plugs w/less than 400 miles on them,
> Vavloline fuelsystem treatment added to fuel less than 400 miles ago. I
> reset the computer when I did all this. It has only developed since the
last
> maintenance. If you let it warm up for 2-3 min ormore, it doesn't even
think
> about doing it. The truck does seem to run worse since I've quit letting
it
> warm up, but maybe that's just the way it's supposed to be?? Any thoughts?
>
>
> Will Coughlin willcoughlin@hotmail.com
> '00 reg.cab,2wd,4.7L/NV-3500HD5-spd/3.92sg(9.25")
> http://www.geocities.com/willcoughlin/index.html
>
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>
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